I have a pair of Gore-Tex walking boots that I have used a fair bit now and want to make sure I keep them serviceable for as long as possible. What is the best way to maintain Gore-Tex walking boots? ...

I've found a great deal on the old Scarpa Manta, but I'm not sure what size I'd be.
I have a pair of size 46 Scarpa SL3 boots (which use the BX last), so does it follow that I'd be 46 in the Manta, ...